Be patient. This 2" gel memory foam mattress topper took 14 days to fully expand. Every day we needed to poke at and stretch area still compressed; the foam held up well to this. Will be putting on our bed tonight and expect it will hold up nicely. We purchased the firm. I was concerned it would too firm and not give enough. We tried a plush before this purchase and it was too soft for us; we sunk and felt like we were rolling up hill to turn over. This is our happy compromise.